121201120111002 has 16 divisors (see below), whose sum is σ = 248953652120352. Its totient is φ = 39308471387280.

The previous prime is 121201120110923. The next prime is 121201120111003. The reversal of 121201120111002 is 200111021102121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121201120111003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272975495524 + ... + 272975495967.

It is an arithmetic number, because the mean of its divisors is an integer number (15559603257522).

Almost surely, 2^{121201120111002} is an apocalyptic number.

121201120111002 is an abundant number, since it is smaller than the sum of its proper divisors (127752532009350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201120111002 is a wasteful number, since it uses less digits than its factorization.

121201120111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545950991533.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121201120111002 its reverse (200111021102121), we get a palindrome (321312141213123).

The spelling of 121201120111002 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, one hundred eleven thousand, two".